Workpiece description: polycarbonate resin (PC) shield, after the surface is pasted with a silicone film, the metal coating is deposited by vacuum sputtering. The purpose of this agent is to peel off the silicone film and metal plating without damaging the polycarbonate resin shield.
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Before cleaning, the mirror effect formed by the existence of the metal coating can be seen on the surface of the PC shield.
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Put it in the dust cleaning agent PTC13 (80%+20% pure water), heat to 55°C, and soak for 5 minutes. It is found that the metal coating on the surface has been removed after soaking for 1 minute, but a layer of transparent silicone film is still there. After soaking for 5 minutes, it was found that the metal coating and silicone film had been completely removed.
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After cleaning. Rinse with pure water and find that it can be completely washed.
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Compare. The photo on the left below is before cleaning. The photo on the right is after cleaning. After cleaning with PTC13 dust cleaning agent, the metal coating and silicone film have been completely removed, and no metallic luster can be seen on the surface. Moreover, the surface of the polycarbonate resin (PC) shield is not roughened by chemical erosion.
